Process for improving textiles



1 Patented Apr. 21, 1931 UNlTED- STATES PA'raN-T oFFrcE OSCAR JAECK, OFBEINACH, SWITZERLAND, ASSIGHOB TO SOCIETY OF CHEMICAL INDUSTRY IN BASLE0F BASEL, SWITZERLAND PROCESS FOR IMPROVING TEXTILES No Drawing.Application filed July 19, 1928, Serial No. 294,062, and in SwitzerlandJuly 28, 1927.

This invention relates to improvements in processes for improvingmaterials, particularly textiles, this term including also straw 5 andleather and is based on the observation that thesalts of themonoacylated 'diamines and the unsymmetrically di-acylated diamines andthe corresponding quaternary am- 1 monium compounds when added in smallportion to an acid solution, have a. remarkable wetting and penetratingeffect. These prod nets are described in the U. S'Pa-te'nt SpecificationNos. 1,534,525 and 1,737,458 and in the British Patent Specification No.294582 and correspond with the general formula R2 N' c..H.N -R: R1 9wherein R means H, acyl or a hydrocarbon radical. R means acyl, R and Rmean a hydrocarbon radical such as alkyl, aryl, aralkyl, R, means ahydrogen atom or a hydrocarbon radical, such as alLyl, aryl, aralkyl, Xany M anion, and n a whole number. According to the invention theseproducts are used with advantage in various processes for improvinganimal and vegetable materials.

They increase, for example, the activity of that by a subsequentsoftening operation the original properties of the freshly tanned skincan be restored. By treating the chromed skin before the drying processwith acompound of the kind in question the dried skin may have impartedto it the valuable properties of the freshly tanned skin by merelyfulling it with warm water. Thus among other things it becomes possibleto use the dried tanned for all those purposes for which hitherto onlyfreshly tanned skins have been supposed to be applicable.

.i The following examples illustrate the invention Ema'ntple 1Woolenpiece goods, for which experience has shown that in ordcr tocarbonize them completely it is necessary to use sulfuric acid of 5 B.,are impregnated with an acid of 3.5 to 4 B. to which 0.2-1.5 cc. perlitre of a. solution of the hydrochloride ofmono-oleyldiethylethylenediamine of the'formula of 10 per cent. strengthhas been added and are then centrifuged and carbonized.

In this manner the goods, when the same machinery is used, are ascompletely carbonized throughout as when an acid .of 5 B. is used withthe advantage that the danger of production of carbonizing spots is muchdiminished, for it is known that such spots are the more likely to beproduced the more concentrated the carbonizing acid.

Since the hydrochloride of mono-oleyldiethylethylenediamine does notform a precipitate with aluminium chloride itis suitable also for use incarbonizing with the latter carbonizing agent.

7 .Example 2 r p The hoods (wool or fur felt) are milled in aliquorcontaining sulfruic acid to which a solution of hydrochloride ofmono-oleyl-diethylethylenediamine of 10 per cent. strength has beenadded inthe proportion of 0.5 to 1.5 cc. per litre. The hat bodies thusobtained are characterized by a much softer handle and by yielding verylevel shades when dyed.

E wample 3 Straw plait is immersed in a liquor in the proportion of 1part to 7 parts of the liquor for 7 hours at 60 C., the liquorcontaining 1 to 2 cc. per litre of a solution of acetate orhvdrochloride of mono-oleyl-diethylethyleiiediamine of 10 per cent.strength, then drained and centrifuged. When the straw plait is thustreated with the normal bleach liquor a thorough bleach with a finepermanent white is obtained.

Example 4 f Skins are tanned in the usual manner with chronnum. Thenneutrallzed and treated with a solution containing per lit-re 1 to 1%cc. of a Sflllli'lfill of acetate or hydrochlw.

ride of mono-oleyl-diethylethylcnediamino for 30 minutes in a cash at-60 C. The leather is then drained, struck out and dried in the usualdrying apparatus.

If the leather is to be wetted out again later. it is simply worked inwater at 40 50 C.

WhatIclaimis:-- 1

1. A process for improving textiles, this term including also straw andleather, by treating the textiles with salts of themonooleyl-diethylethylenediaminc.

2. A process for improving textiles, this term including also straw andleather, by treating these textiles with the products of the generalformula wherein R means H, acyl or a hydrocarbon radical, R means acyl,R and R means a hydrocarbon radical, R means" a hydrogen atom or ahydrocarbon radical, X any anion, and n a whole number.

3. A process for improving textiles of I animal origin, by treating thetextiles with salts of the mono-oleyl-diethylethylenediamme.

4. A process for improving textile material of animal origin, bytreating the materials with the products of the general formula radical,R, means a'cyl, R and R means a hydrocarbon radical, It, means ahydrogen atom or a hydrocarbon radical, X any anion, and n a wholenumber.

5. A process for improving wool, by treating this material with theproducts of the general formula I wherein R means H, acyl or ahydrocarbon radical, R means acyl, R and R mean a hydrocarbon radical, Rmeans a hydrogen atom or a hydrocarbon radical, X any anion, and n awhole number. i 6. A process for improving wool, by treating thismaterial with salts of the monooleyl-diethylethylenediamine.

7. A process for earbonizing wool, wherein the carbonizing bath containsproducts of the general formula wherein R means H, acyl or a hydrocarbonradical, R means acyl, R and R mean a hydrocarbon radical, R. means ahydrogen atom or a hydrocarbon radical, l any anion,

my name this 9th day of Jul 1928.

OSC J AECK.

